On Mon, Nov 10, 2014 at 9:05 PM, Lukáš Czerner <lczerner@xxxxxxxxxx> wrote: > On Mon, 10 Nov 2014, Ming Lei wrote: > >> Date: Mon, 10 Nov 2014 20:18:32 +0800 >> From: Ming Lei <tom.leiming@xxxxxxxxx> >> To: Lukáš Czerner <lczerner@xxxxxxxxxx> >> Cc: Jens Axboe <axboe@xxxxxxxxx>, >> Linux Virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>, >> Christoph Hellwig <hch@xxxxxx> >> Subject: Re: Re: kernel BUG at drivers/block/virtio_blk.c:172 >> >> On Mon, Nov 10, 2014 at 7:59 PM, Lukáš Czerner <lczerner@xxxxxxxxxx> wrote: >> > >> > Hi, >> > >> > so I encountered it again on 3.17.0-rc4. This output is from the >> > run with your patch. >> > >> > I am using libvirt (virt-manager) to configure and run the virtual >> > machine, but looking at the xml, I do not think it's passing >> > 'scsi=off' at all. >> > >> > Btw, that xfs file system is a root file system. >> > >> > >> > [ 3.667553] blk_recount_segments: 1-0-1 vcnt-0 segs-128 >> > [ 3.668692] blk_recount_segments: 1-0-1 vcnt-0 segs-128 >> > [ 3.669897] blk_recount_segments: 1-0-1 vcnt-0 segs-128 >> > [ 3.671083] blk_recount_segments: 1-0-1 vcnt-0 segs-128 >> >> Hamm, I should have used bi_phys_segments to decide if >> merge is needed, and attached patch should fix the problem. > > Thanks for the patch, unfortunately it does not fix the issue for > me. I am willing to try something else though :) Care to post the log(like "blk_recount_segments: 1-0-1 vcnt-0 segs-128") after applying the patch in my last reply? Thanks, -- Ming Lei _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
